Hello.
Part of the psi full scan is devoted to detecting vulnerabilities in Windows/MS updates....so yes, if there was something missing from a Security standpoint, it would be detected.....and advise you accordingly.

When updating Microsoft Applications, it is a good idea to keep in mind that some Microsoft Updates do not "kick in" until after a reboot. Therefore, it is recommended to try following this procedure when installing Microsoft Updates:

1) Check Microsoft Update: install all security-related patches
2) Reboot
3) Repeat step 1: repeat step 2 if anything was installed at this step
4) Run a full rescan with the PSI